Despite protestations to the contrary, Sauber's struggle for survival is not over, according to the latest German-language reports.
The Russian rescue deal had appeared back on track on Friday, as t...

Despite protestations to the contrary, Sauber's struggle for survival is not over, according to the latest German-language reports.

The Russian rescue deal had appeared back on track on Friday, as teen driver Sergey Sirotkin confirmed rumours he has now signed a race deal for 2014.

But Welt newspaper said the flow of money from Russia has actually been barely more than a trickle.

The German report also said Sauber has travelled to Belgium with a new front wing and is tinkering once again with a passive double-DRS system, indicating that funds for technical development are flowing once again.